Metal-feeding roll



(No ModeL) 2 Sheets- Sheet 1. W. LANG.

- METAL FEEDING ROLLS. v No. 345,386. Patntad July 13, 1886.

WITNESSES: IIVI/E/v'TOR PETERS. Pnnmuma n her. vynhinmon, D. C,

(No Model.) 2 Sheets-Sheet 2.

4 W. LANG.

METAL FEEDING ROLLS. No. 345,386. Patented July 13, 1886.

WITNESSES: IIVVE/VTOR By {/0 Z UNITED STATES PATENT OFFICE;

WILLIAM LANG, OF BROOKLYN, NEW YORK.

METAL-FEEDING ROLL.

SPECIFICATION forming part of Letters Patent No. 345,386, dated July 13,1886.

(No model.)

To all whom it may concern.-

Beit known that I, WILLIAM LANG, of Brook- ]yn, in the county of Kingsand State of New York, have invented certain new and useful Improvementsin Rolls for Feeding Wire and Sheet Metal, of which the following isaspecification.

This invention relates to an improved set of rolls for metal-workingmachines, said rolls being capable of adjustment, so as to feed longerand shorter pieces within certain limits; and the invention consists ofthe combination of a lower rotary feed-roll that is provided with asemicircular offset or shoulder, and of a second upper roll that rotatesin contact with the offset of the lower roll, and is made of twosemicircular sections, which are clamped together, one section beingprovided with an offset or shoulder that corresponds in shape and sizfiewith the semicircular offset of the other r0 be axially adjusted to theshaft of the roll by a worm-wheel at one end of the shaft, which mesheswith a worm-screw supported in bearings attached to the sections of theupper roll. The sections are tightly elampedaftertheshaft has beenaxially adjusted in the same by clampscrews arranged in recesses of thesmaller section of the roll.

In the accompanying drawings, Figure 1 represents a front elevation ofmy improved feedrolls. Fig. 2 is a vertical transverse section of thesame, and Figs. .3 and 4 are details of the worm-gear for adjusting therelative positions of the upper feed-roll and its shaft.

Similar letters of reference indicate corresponding parts. V

In the drawings,'A represents the support ing-frame of my improvedfeed-rolls, which frame is provided with stationary bearings for theshaft of the lower roll, B, and with adjustable spring-cushionedbearings for the shaft of the upper feed-roll, O. The lower feedroll, B,is provided with an offset or shoulder, 7), extending around one-half ofits circumference,which offset forms contact with a similar offset, I),on the feed-roll O, that ismade of two semicircular sections, which aretightly clamped to the shaft 0 of the feed-roll by screws (1 d, theheads of which are located in transverse recesses of the smaller sectionof The sections of the upper feed-roll can,

the ends of the sections of the shell 0 are attached semicircularsegments e e, which serve to support at one of their ends, on suitablebearings, the spindle f of a worm, f, which worm meshes with aworm-wheel, f that is keyed to the shaft of the feed-roll O. The end ofthe spindle f is provided with a square head, that is readily engaged bya key for the purpose of turning the spindle and worm, and changingthereby the relative position of the shaft and roll-sections by theaxial shifting of the shaft (3 in the roll 0. The wire or sheet metal tobe fed by the feed-rolls is engaged by the contact of the offsets orshoulders I) b of the rolls, which offsets can feed larger or smallerpieces, according to the length of contact of the offsets of the rolls.The largest pieces that can be fed by the rolls are equal to thecircumference of the semicircular offsets, which are placed in contactwith each other from one end to the other. When a smaller piece of wireor sheet metal is to be fed, the position of the upper roll, 0, ischanged by the adjusting wormgear mechanism of the shaft 0 so that onlysuch a portion of the circumferenceof the offset I) of the upper roll ascorresponds to the length of wire or metal to be fed is in contact withthe offset b of the lower feed-roll, as shown in dotted lines in Fig. 2.Rotary motion is transmitted from one feed-roll to the other by propergearwheels. In this manner, by the axial adjustment of the shaft of theupper feed-roll in the roll any length of wire or sheet metal within thelimits of the length of the entire circumference of the offset portionscan be fed by the the feed-roll O, as shown in Figs. 1 and 2. To

rolls from the longest contact between the semicircular offsets to theshortest contact that can be obtained between the offset porrotaryfeed-roll consisting of two sections that are clamped to each other andthe shaft, one section having also an offset, so as to form contact withthe enlarged portion of the lower feed-roll, and a worm gear mechanismby which the shaft of the upper roll may be adjusted axially in theroll, substantially as set forth.

2. The combination, with a lower rotary feed-roll having an offset orshoulder, of an upper rotary feed roll formed of two sections clampedtogether by screws located in recesses of one section, the other sectionbeing provided with an offset or shoulder corresponding to the offset ofthe lower feed-roll, and segments attached to the ends of the sectionsof the upper roll, and a worm-gear by which the shaft of the upper rollcan be axially adjusted in said roll, so as to change thereby therelative position of the offset of the upper feed-roll to 20 the offsetof the lower roll, substantially as set forth.

3. The combination of a feed-roll composed of a shaft andtwosemicircular sections, segments attached to the ends of saidsections, a 25 worm-screwsupported in bearings of said segments, and aworm-wheel keyed to the shaft of the feed-roll, the worm-gear permittingthe axial adjustment of the shaft to the roll, substantially as setforth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

\VILLIAM LANG.

Witnesses:

PAUL GOEPEL, CARL KARI.

